Stay updated with real-time air quality in Pekin, Illinois featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
30
Good
Pekin, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.68 μg/m³
0
55
155
255
425
605+
32.39 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
20.93 ppb
0
54
101
361
1250
2050+
0.65 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Pekin, Illinois
Pekin, Illinois
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AQI 38
Good
7.01μg/m³
PM2.5
31.00μg/m³
PM10
31.80ppb
O3
0.17ppb
SO2
2.90ppb
NO2
0.19ppm
CO
AQI 38
Good
7.44μg/m³
PM2.5
32.74μg/m³
PM10
31.32ppb
O3
0.17ppb
SO2
2.92ppb
NO2
0.19ppm
CO
AQI 33
Good
5.83μg/m³
PM2.5
25.46μg/m³
PM10
35.24ppb
O3
0.19ppb
SO2
3.00ppb
NO2
0.19ppm
CO
AQI 33
Good
5.92μg/m³
PM2.5
25.61μg/m³
PM10
35.33ppb
O3
0.20ppb
SO2
3.27ppb
NO2
0.19ppm
CO
AQI 62
Moderate
15.13μg/m³
PM2.5
66.74μg/m³
PM10
30.98ppb
O3
0.13ppb
SO2
1.98ppb
NO2
0.17ppm
CO
AQI 35
Good
6.03μg/m³
PM2.5
26.73μg/m³
PM10
38.18ppb
O3
0.25ppb
SO2
2.47ppb
NO2
0.19ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Pekin, Illinois are available every hour.
Pekin, Illinois experienced its worst air quality at 06:00:00, 2025-06-03.
The best air quality in Pekin, Illinois was observed at 10:00:00 on 2025-06-04.
The air quality in Pekin, Illinois right now is Good, with an AQI of 30.
In Pekin, Illinois, O3 is the most frequently found pollutant.
When air quality in Pekin, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Pekin, Illinois currently has a PM2.5 concentration of 3.855 μg/m3.
Pekin, Illinois currently has a PM10 concentration of 30.682 μg/m3.
The current carbon monoxide (CO) level in Pekin, Illinois is 0.649 ppm.
The current sulfur dioxide (SO2) concentration in Pekin, Illinois is 0.422 ppb.
Pekin, Illinois currently has an ozone (O3) concentration of 32.392 ppm.
The current level of nitrogen dioxide (NO2) in Pekin, Illinois is 20.925 ppb.
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